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mozilla repositories

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mozilla/BrowserQuestJavaScript

DEPRECATED - A HTML5/JavaScript multiplayer game experiment

Last commit Jul 14, 2023

 (9,215 stars) (2,831 forks) (0 indexed issues) (0 open good first issues)
mozilla/DeepSpeechC++

DeepSpeech is an open source embedded (offline, on-device) speech-to-text engine which can run in real time on devices ranging from a Raspberry Pi 4 to high power GPU servers.

Last commit Jun 19, 2025

 (26,755 stars) (4,093 forks) (30 indexed issues) (30 open good first issues)
mozilla/FiraCSS

DEPRECATED - Mozilla's new typeface, used in Firefox OS

Last commit Dec 16, 2020

 (5,163 stars) (306 forks) (0 indexed issues) (0 open good first issues)
mozilla/FirefoxColorJavaScript

Theming demo for Firefox Quantum and beyond

Last commit Jun 23, 2023

 (501 stars) (98 forks) (0 indexed issues) (0 open good first issues)
mozilla/MotionMarkJavaScript

MotionMark Browser Benchmark

Last commit Aug 18, 2023

 (4 stars) (0 forks) (0 indexed issues) (0 open good first issues)
mozilla/OpenWPM-WebExtension-ExperimentJavaScript

SUPERSEEDED/REPLACED this approach by using the existing WebExtension APIs directly (previous explanation: WebExtension experiments API for privacy-related browser instrumentation that requires privileged code)

Last commit Jul 30, 2018

 (4 stars) (1 fork) (0 indexed issues) (0 open good first issues)
mozilla/SpeedometerJavaScript

An open source repository for the Speedometer benchmark

Last commit Jun 1, 2026

 (5 stars) (3 forks) (0 indexed issues) (0 open good first issues)
mozilla/addon-sdk

DEPRECATED - The Add-on SDK repository.

Last commit Sep 9, 2016

 (638 stars) (259 forks) (0 indexed issues) (0 open good first issues)
mozilla/addons-canaryJavaScript

A canary add-on to test blocks

Last commit Jan 19, 2021

 (4 stars) (1 fork) (0 indexed issues) (0 open good first issues)
mozilla/adrPython

Runner library for ActiveData recipes

Last commit Mar 19, 2021

 (4 stars) (8 forks) (0 indexed issues) (0 open good first issues)
mozilla/awsboxJavaScript

INACTIVE - http://mzl.la/ghe-archive - A featherweight PaaS on top of Amazon EC2 for deploying node apps

Last commit Mar 28, 2019

 (810 stars) (85 forks) (0 indexed issues) (0 open good first issues)
mozilla/butterJavaScript

Popcorn Authoring Library

Last commit Nov 11, 2013

 (283 stars) (141 forks) (0 indexed issues) (0 open good first issues)
mozilla/chromelessJavaScript

DEPRECATED - Build desktop applications with web technologies.

Last commit Oct 15, 2019

 (761 stars) (129 forks) (0 indexed issues) (0 open good first issues)
mozilla/devtools-perf-gameJavaScript

INACTIVE - http://mzl.la/ghe-archive - Power Surge - A Firefox Developer Edition Performance Tools Celebration!

Last commit Jun 8, 2015

 (65 stars) (32 forks) (0 indexed issues) (0 open good first issues)
mozilla/dxrPython

DEPRECATED - Powerful search for large codebases

Last commit Oct 13, 2021

 (805 stars) (219 forks) (0 indexed issues) (0 open good first issues)
mozilla/extension-activity-monitorJavaScript

Firefox extension activity monitor

Last commit Apr 4, 2023

 (24 stars) (12 forks) (0 indexed issues) (0 open good first issues)
mozilla/fathomJavaScript

A framework for extracting meaning from web pages

Last commit May 22, 2023

 (1,966 stars) (90 forks) (0 indexed issues) (0 open good first issues)
mozilla/firefox-translationsJavaScript

Firefox Translations is a webextension that enables client side translations for web browsers.

Last commit Sep 4, 2023

 (568 stars) (49 forks) (0 indexed issues) (0 open good first issues)
mozilla/fxaTypeScript

Monorepo for Mozilla Accounts (formerly Firefox Accounts)

Last commit Jul 7, 2026

 (681 stars) (232 forks) (0 indexed issues) (0 open good first issues)
mozilla/hawkJavaScript

HTTP Holder-Of-Key Authentication Scheme

Last commit Jul 10, 2023

 (1,902 stars) (186 forks) (0 indexed issues) (0 open good first issues)